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Finding the Fourth Proportional to 31,897.26, 44,023.30 and 18,476.78

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Solution

The fourth proportional to 31,897.26, 44,023.30 and 18,476.78 is: 25,500.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,897.26 : 44,023.30 = 18,476.78 : x
  2. Step 2: Convert to fraction form
    31,897.26/44,023.30 = 18,476.78/x
  3. Step 3: Cross multiply
    31,897.26x = 44,023.30 × 18,476.78
  4. Step 4: Simplify right side
    31,897.26x = 813,408,562.67
  5. Step 5: Solve for x
    x = 813,408,562.67/31,897.26
  6. Step 6: Final answer
    x = 25,500.89

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.